Q2 Adv. Chemistry Recovery Assignment

Front

What type of electromagnetic wave is used in medicine to destroy cancer cells?

Back

Gamma rays are used in medicine to destroy cancer cells.

Front

What can characteristic spectral lines of the atomic emission spectrum be used to identify?

Back

Characteristic spectral lines can be used to identify an element.

Front

What is the name of the acid represented by H₂SO₄?

Back

The acid is called sulfuric acid.

Front

In the Bohr model of the oxygen atom, which electronic transition results in light emission?

Back

The transition from n = 3 to n = 2 results in light emission.

Front

Which transition produces the spectrum line with the lowest wavelength in an atomic spectrum?

Back

Transition D produces the spectrum line with the lowest wavelength.

Front

Define electromagnetic waves.

Back

Electromagnetic waves are waves of energy that travel through space and can include radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

Front

What is the significance of the atomic emission spectrum?

Back

The atomic emission spectrum is significant because it can be used to identify elements based on their characteristic spectral lines.

Front

Explain the concept of energy levels in an atom.

Back

Energy levels in an atom are the fixed distances from the nucleus where electrons can exist, with each level corresponding to a specific energy.

Front

What is the relationship between wavelength and energy of a photon?

Back

The energy of a photon is inversely proportional to its wavelength; shorter wavelengths correspond to higher energy.

Front

What is the role of oxygen in biological systems?

Back

Oxygen is essential for respiration in most living organisms and is a key element in many biological processes.